Research on Geographical Environment Unit Division Based on the Method of Natural Breaks (Jenks)
Zoning which is to divide the study area into different zones according to their geographical differences at the global, national or regional level, includes natural division, economic division, geographical zoning of departments, comprehensive zoning and so on. Zoning is of important practical sign...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2013-11-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-4-W3/47/2013/isprsarchives-XL-4-W3-47-2013.pdf |
| Summary: | Zoning which is to divide the study area into different zones according to their geographical differences at the global, national or
regional level, includes natural division, economic division, geographical zoning of departments, comprehensive zoning and so on.
Zoning is of important practical significance, for example, knowing regional differences and characteristics, regional research and
regional development planning, understanding the favorable and unfavorable conditions of the regional development etc.
Geographical environment is arising from the geographical position linkages. Geographical environment unit division is also a type
of zoning. The geographical environment indicators are deeply studied and summed up in the article, including the background, the
associated and the potential. The background indicators are divided into four categories, such as the socio-economic, the political and
military, the strategic resources and the ecological environment, which can be divided into more sub-indexes. While the sub-indexes
can be integrated to comprehensive index system by weighted stacking method. The Jenks natural breaks classification method, also
called the Jenks optimization method, is a data classification method designed to determine the best arrangement of values into
different classes. This is done by seeking to minimize each class’s average deviation from the class mean, while maximizing each
class’s deviation from the means of the other groups. In this paper, the experiment of Chinese surrounding geographical environment
unit division has been done based on the natural breaks (jenks) method, the geographical environment index system and the weighted
stacking method, taking South Asia as an example. The result indicates that natural breaks (jenks) method is of good adaptability and
high accuracy on the geographical environment unit division.
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The geographical environment research was originated in the
geopolitics and flourished in the geo-economics. The main
representatives of the geopolitics are German geographer
Friedrich Ratzel, British geographer Mackinder and American
geographical politician Nicholas John Spykman etc. The main
representative of the geo-economics is American geographical
economist Edward Luttwak. China has the most neighboring
countries in the world, and its geographical environment is
extremely complex. With the continuous development of
globalization, China's relations with neighboring countries have
become more complex and more closely. So it is very
meaningful to have depth research on geographical environment
unit division of China. |
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| ISSN: | 1682-1750 2194-9034 |